Improvement in crimping-clamps



D is the clamping-screw.

UNITED STATES ATEN'I. Orro.

PHILIP A. SGHOELLHORN, OF BUFFALO, NEW YORK.

IMPROVEMENT IN CRIMPING-CLAMPS.

Specification forming part of Letters Patent No. 141,956, dated August19, 1873; application filed May 13, 1873.

To all whom it may concern:

Be it known that I, PHILIP A. SonoELL- HORN, of the city of Bufialo, inthe county of Erie and State of New York, have invented an ImprovedCrimping-Scroll, of which the following is a specification:

My invention relates to the construction of scrolls for crimpingtheuppers of boots and shoes and it consists in casting theclampingtongue with a projection or arm, extending at right angles tothe face of the tongue, and in a direction from the opposite facethereof. These arms extend through holes cast in the scroll. The endsextend outside of the scroll, and are so arranged that the leather canbe released by turning the clamping' screw and pressing with the thumband finger against the ends of the arms on the tongues, forcing themtogether.

In the accompanying drawing, Figure I is a side elevation of my improvedcrimping-scroll complete. Fig. 11 is a section on line X, Fig. I. Fig.III is a face view of one of the crimping-tongues.

Like letters of reference designate like parts in each of the figures.

A is the crimpingscroll, of which a a are the clampingj aws. B B are theclampingtongues. O is the clamping block or wedge. The inner faces ofthe jaws to a have a series of parallelstraight corrugations, a. a. Acorresponding series of corrugations, c c, is also cast on the tongue B.At the points of the tongue and jaw one or more corrugations are omittedon each, and instead thereof a roughened or granulated surface, I) b, isformed, by which a small projection of leather may he clamped. Each ofthe tongues B has also a projection or arm, E, cast, and extending outfrom the corrugated face of the tongue. These arms pass through holes Fin the clampingjaws a of the scroll, in which they act as a guide to thetongue. Their ends also extend outside of the jaws, so that after therelease of the screw the leather is readily released by pressing uponthe ends of the arms E, by which they are forced from the jaws to, andrelease the leather. The corrugations a a and c c are made smooth androunded, so as to prevent any possible injury to the leather.

I claim- The combination of the screw D, block or wedge O, tongues B Bhaving lateral arms or projections E E, and the jaws a at having holes FF, substantially as shown and described.

P. A. SOHOELLHORN.

Witnesses:

VIc'roR H. BECKER, JAMES SANGSTER.

